diff --git a/drivers/net/irda/Kconfig b/drivers/net/irda/Kconfig
index 6bf76a4..1c553d7 100644
--- a/drivers/net/irda/Kconfig
+++ b/drivers/net/irda/Kconfig
@@ -310,7 +310,7 @@
 
 config NSC_FIR
 	tristate "NSC PC87108/PC87338"
-	depends on IRDA
+	depends on IRDA && ISA_DMA_API
 	help
 	  Say Y here if you want to build support for the NSC PC87108 and
 	  PC87338 IrDA chipsets.  This driver supports SIR,
@@ -321,7 +321,7 @@
 
 config WINBOND_FIR
 	tristate "Winbond W83977AF (IR)"
-	depends on IRDA
+	depends on IRDA && ISA_DMA_API
 	help
 	  Say Y here if you want to build IrDA support for the Winbond
 	  W83977AF super-io chipset.  This driver should be used for the IrDA
@@ -347,7 +347,7 @@
 
 config SMC_IRCC_FIR
 	tristate "SMSC IrCC (EXPERIMENTAL)"
-	depends on EXPERIMENTAL && IRDA
+	depends on EXPERIMENTAL && IRDA && ISA_DMA_API
 	help
 	  Say Y here if you want to build support for the SMC Infrared
 	  Communications Controller.  It is used in a wide variety of
@@ -357,7 +357,7 @@
 
 config ALI_FIR
 	tristate "ALi M5123 FIR (EXPERIMENTAL)"
-	depends on EXPERIMENTAL && IRDA
+	depends on EXPERIMENTAL && IRDA && ISA_DMA_API
 	help
 	  Say Y here if you want to build support for the ALi M5123 FIR
 	  Controller.  The ALi M5123 FIR Controller is embedded in ALi M1543C,
@@ -385,7 +385,7 @@
 
 config VIA_FIR
 	tristate "VIA VT8231/VT1211 SIR/MIR/FIR"
-	depends on IRDA
+	depends on IRDA && ISA_DMA_API
 	help
 	  Say Y here if you want to build support for the VIA VT8231
 	  and VIA VT1211 IrDA controllers, found on the motherboards using
diff --git a/net/irda/irda_device.c b/net/irda/irda_device.c
index d6ccd32..70543d8 100644
--- a/net/irda/irda_device.c
+++ b/net/irda/irda_device.c
@@ -470,6 +470,7 @@
 }
 EXPORT_SYMBOL(irda_device_unregister_dongle);
 
+#ifdef CONFIG_ISA_DMA_API
 /*
  * Function setup_dma (idev, buffer, count, mode)
  *
@@ -492,3 +493,4 @@
 	release_dma_lock(flags);
 }
 EXPORT_SYMBOL(irda_setup_dma);
+#endif